diff --git a/rclcpp/include/rclcpp/node.hpp b/rclcpp/include/rclcpp/node.hpp
index 0b63a2f..9e17b33 100644
--- a/rclcpp/include/rclcpp/node.hpp
+++ b/rclcpp/include/rclcpp/node.hpp
@@ -814,7 +814,7 @@ public:
    * \param[in] alternative_value Value to be used if the parameter was not set.
    */
   template<typename ParameterT>
-  [[deprecated("use declare_parameter() and it's return value instead")]]
+  [[deprecated("use declare_parameter() and its return value instead")]]
   void
   get_parameter_or_set(
     const std::string & name,
diff --git a/rclcpp_lifecycle/include/rclcpp_lifecycle/lifecycle_node.hpp b/rclcpp_lifecycle/include/rclcpp_lifecycle/lifecycle_node.hpp
index 6f7f587..302cc5c 100644
--- a/rclcpp_lifecycle/include/rclcpp_lifecycle/lifecycle_node.hpp
+++ b/rclcpp_lifecycle/include/rclcpp_lifecycle/lifecycle_node.hpp
@@ -505,7 +505,7 @@ public:
    */
   template<typename ParameterT>
   // cppcheck-suppress syntaxError // bug in cppcheck 1.82 for [[deprecated]] on templated function
-  [[deprecated("use declare_parameter() and it's return value instead")]]
+  [[deprecated("use declare_parameter() and its return value instead")]]
   void
   get_parameter_or_set(
     const std::string & name,